428662233711577 has 2 divisors, whose sum is σ = 428662233711578. Its totient is φ = 428662233711576.

The previous prime is 428662233711499. The next prime is 428662233711581. The reversal of 428662233711577 is 775117332266824.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428382201180816 + 280032530761 = 20697396^2 + 529181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428662233711577 is a prime.

It is a super-2 number, since 2×428662233711577² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (428662233711377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214331116855788 + 214331116855789.

It is an arithmetic number, because the mean of its divisors is an integer number (214331116855789).

Almost surely, 2^{428662233711577} is an apocalyptic number.

It is an amenable number.

428662233711577 is a deficient number, since it is larger than the sum of its proper divisors (1).

428662233711577 is an equidigital number, since it uses as much as digits as its factorization.

428662233711577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142248960, while the sum is 64.

The spelling of 428662233711577 in words is "four hundred twenty-eight trillion, six hundred sixty-two billion, two hundred thirty-three million, seven hundred eleven thousand, five hundred seventy-seven".